Home / 253,113.42-379,526.40-103,178.10

Finding the Fourth Proportional to 253,113.42, 379,526.40 and 103,178.10

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Solution

The fourth proportional to 253,113.42, 379,526.40 and 103,178.10 is: 154,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,113.42 : 379,526.40 = 103,178.10 : x
  2. Step 2: Convert to fraction form
    253,113.42/379,526.40 = 103,178.10/x
  3. Step 3: Cross multiply
    253,113.42x = 379,526.40 × 103,178.10
  4. Step 4: Simplify right side
    253,113.42x = 39,158,812,851.84
  5. Step 5: Solve for x
    x = 39,158,812,851.84/253,113.42
  6. Step 6: Final answer
    x = 154,708.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.